Improved machine for working waste fibrous stock



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@J /taten' initrd www A. W. JOHNSCN, OF WORCESTER, MASSACHUSETTS.

Leners Paars No. 86,409, ma February 2, 1869. l

The Schedule referred to in these Letters Patent and making part f thelame.

Know all men by these presents:

That 1, A. W. JOHNSON, of the city of Worcester', county of Worcester,and Commonwealth of Massachusetts, have invented a certain new andusefulIrnprovement in Machines for Working Waste Fibrous Stock; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming a part of this specification, in whichl Figure lrepresents atop or plan view of so much of a machine for working wastefibrous stockl as is necessary to illustrate my invention;

Figure 2 represents an end' view ofthe same and Figure represents asection on line A B, iig. 1.

To enable those skilled in the art to which my invention belongs, tomake and use the same, I will proceed to describe it more in detail.

As heretofore constructed, machines for working Waste fibrous stock',which results in the manufacture of paper, textile fabrics, and likematerials, have been defective, for the reason that the hard ends andbunches thrown out by the working-cylinders were liable to fall or slideback into the machine, and be deposited with the finished stock.

The nature of iny invention consists in combining a fan with theWorking-cylinder, in such a manner that the hard ends and bunches whichlodge or fall upon the top of the case of the working-cylinder, will beblown off, and thus be prevented from falling or sliding back into themachine.

'In the drawings- A A A A are the frame-pieces, and B, the casing.

-G is the working-cylinder, which is to be filled with spikes or teeth,in the usual manner, its shaft or journal, D, being properly' supportediu bearings on the side-pieces A of the main frame. v

As lthe machines have been made heretofore, the upper partof the case Bhas been left open, as shown at a, to allow of the escape of hard ends,bunches, and sticks.

The stock, being fed to the endless apron E, is carried forward to thefeed-rollers b b, which feed it slowly and uniformly to theworking-cylinder C, the teeth of which tear and Work the stock up veryfinely, as fast as it is fed in by the rolls b b. v

As cylinder C moves in the direction indicated by the red arrow, thehard ends, bunches of threads, lumps, and other hard substances, will bethrown up through the opening a of case B, and should they fall backupon the top of case B, they will be blown back, and prevented fromfalling or being drawn in upon the work.- ing-cyliudcr G, by the windfrom fau F, which is arranged forward ot' the opening (L in case B,substantially as shown in the drawings. f

I prefer to run fau F by a straight belt, Gr, owing to the greatrapidity at which it is run. It would probably deliver the wind withless friction in the fan-case .H if the belt were crossed, but I havefound from .practice that it is better to run the belt straight. Bycutting a hole in the lower part of the case B, the stock can be blownthrough a box, into a room prepared for the purpose, as fast as itleaves the cylinder C.

Those skilled in the art to which my invention belongs, '.vill read-ilyappreciate the advantage gained by my improvements.

The stock, when blown from the case B, is free from all hard ends,bunches, and other similar substances, and can be carded without injuryto the teeth of the cards.

Belt G may be driven by a pulley, I, on, the end of shaft D. Thefeed-rolls b b are to be driven in the usual manner; therefore themechanism has not been shown.

Having described my improved machine for working waste stock,

That I claim therein as new, and of my own invenrtion, and desire tosecure by Letters Patent, is

The combination and relative arrangement, with the feed-rolls b l),cylinder C, and case B, having an opening, a, of the fan F,substantially afs and for the purpose set forth.

A. W. JOHNSON.

Witnesses:

THos. H. DODGE, D. L. MILLER.

